Britney Spears tweets warm-up photo ahead of Las Vegas show launch

The pop princess shared a behind-the-scenes look on Twitter as she rehearsed the day before launching her highly anticipated Las Vegas residency Friday at Planet Hollywood Resort & Casino.

The 32-year-old singing sensation is solo on stage while rehearsing her show "Britney: Piece of Me," striking a sexy pose with a dark purple spotlight. The mother of two is flaunting her enviable abs and ultra-fit body in a formfitting two-piece ensemble and a slick Fedora.

"Can't believe the 1st show is almost here!!! #PieceOfMe," she added with the sultry pic.

Spears, who has been drumming up excitement on her Twitter account by adding snapshots of her dancers posing as numbers counting down the days, shared a solo shot of herself as "1."

"I've got chills. Last dress rehearsal for friends and family before opening night tmw. #1DayTillShowtime," the Grammy winner captioned the smiling pic.

Spears' first show will be packed with family and friends, as well as A-list stars, including Katy Perry, Miley Cyrus, Adam Lambert, tennis great Serena Williams, hitmaker Sia and Brit's former touring partner Pauly D.